USNA - USDA Plant Hardiness Zone Map: Plants 2

Indicator Plant Examples

Listed Alphabetically

Cold Hardiness Ratings for Selected Woody Plants

Representative plants are listed under the coldest zones in which they normally succeed A - C E - I J - N O - R S - Z

Botanical (and Common) Names Zone

Abetiophyllum distichum (white forsythia)                                 5b
Acer platanoides (Norway maple)                                            4
Aesculus x camea (red horsechestnut)                                       4
Araucaria araucana (monkey puzzle)                                      7b
Arctostaphylos uva-ursi (bearberry)                                         2b
Aristolochia durior (Dutchman's pipe)                                      4b
Aucuba japonica (Japanese aucuba)                                         7b Bauhinia variegata (purple orchid tree)                                    9b
Berberis danvinii (Darwin barberry)                                         8
Betula pendula (European white birch)                                     3
Bouvardia 'Coral' (Coral bouvardia)                                         9
Butia capitata (Pindo palm)                                                      8b Camellia reticulate (reticulate camellia)                                      9
Camellia sasanqua (sasanqua camellia)                                     7b
Carya illinoinensis 'Major' (pecan)                                           5 (grows)
                                                                                                 6 (fruits)
Casuarina equisetifolia (Australian pine)                                  9b
Ceanothus impressus (Santa Barbara ceanothus)                       8
Cedrus deodara (deodar cedar)                                                7b
Cercis chinensis (Chinese redbud)                                             6b
Chamaecyparis lawsoniana (Lawson cypress)                          6b
Chamaecyparis pisifera (Sawara cypress)                                 5
Cinnamomum camphora (camphor tree)                                    9
Cistus laurifolius (laurel rockrose)                                             7
Cistus x purpureus (purple rockrose)                                         8
Comus alba (Tatarian dogwood)                                                3
Comus kousa (Japanese dogwood)                                           5b
Cunninghamia lanceolata (cunninghamia)                                  7
Cytisus x praecox (Warminster broom)                                      6

Botanical (and Common) Names Zone

Elaeagnus multiflora (cherry elaeagnus)                                     5
Elaeagnus pungens (thorny elaeagnus)                                       7
Eriobotrya japonica (loquat)                                                      8
Euonymus alatus (winged euonymus)                                         3b
Euphorbia pulcherrima (poinsettia)                                           10

x Fatshedera lizei (botanical-wonder)                                         8
Forsythia ovata (early forsythia)                                                 4b
Forsythia suspensa (weeping forsythia)                                      5b
Fremontodendron mexicanum (flannel bush)                               9

Ginkgo biloba (ginkgo, maidenhair-tree)                                     5
Hibiscus rosa-sinensis (Chinese hibiscus)                                   9b
Hibiscus syriacus (shrub althea)                                                 5b
Hypericum 'Hidcote' (Hidcote St. Johnswort)                              6

Iberis sempervirens (evergreen candytuft) 5
Ilex crenata 'Convexa' (convexleaf Japanese holly) 6b

Botanical (and Common) Names Zone

Jacaranda acutifolia (green ebony)                                           10
Juglans regia (English or Persian walnut)                                    6b
Juniperus horizontalis (creeping juniper)                                    3

Koelreuteria paniculata (golden rain-tree) 6

Laburnum x watereri (Waterer laburnum) 7
Lagerstroemia indica (crapemyrtle) 5b

Mahonia aquitolium (Oregon hollygrape)                          5b
Malus x amoldiana (Arnold crabapple)                                      4
Melia azedarach (chinaberry)                                                    7b
Metasequoia glyptostroboides (dawn redwood)                        5b
Myrtus communes (true myrtle)                                                  8b

Nandina domestics (heavenly bamboo) 7
Nerium oleander (oleander) 8b

Botanical (and Common) Names Zone

Olea europaea (common olive) 8
Osmanthus heterophyflus (holly osmanthus) 7

Picea abies (Norway spruce)                                                      3
Pieris japonica (Japanese andromeda)                                        6
Pinus mugo var. mughus (Mugo pine)                                          3
Pinus radiata (Monterey pine)                                                    7b
Pinus strobus (eastern white pine)                                               3b
Prunus yedoensis (Yoshino cherry)                                             6

Rhaphiolepis indica 'Rosea' (Indian hawthorn)                             8
Rhododendron 'America' (hybrid rhododendron)                          5
Rhododendron 'Loderi King George' (hybrid)                               8
Rhododendron mollis hybrids (mollis azalea)                                 4
Rhododendron prinophyllum (roseum) (roseshell azalea)              7
Rhododendron 'Purple Splendor' (hybrid rhododendron)               8b
Rhododendron southern Indian hybrids (Indian azalea)                   3
Rosa rugosa (rugosa rose)

Botanical (and Common) Names Zone

Schinus terebinthifolius (Brazilian pepper-tree)                             9b
Sequoia sempervirens (redwood)                                                  8
Sequoiadendron giganteum (giant sequoia)                                   7
Stewartia pseudocamellia (Japanese stewartia)                              6
Syringa vulgaris (common lilac)                                                    3b

Ulmus americana (American elm)                                                  2

Vibumum burkwoodii (Burkwood viburnum) 5b

Zelkova serrata (Japanese zelkova) 5b

USDA Miscellaneous Publication No. 1475. Issued January 1990.
Authored by Henry M. Cathey while Director, U.S. National Arboretum
Edited, formatted and prepared for the US National Arboretum web site by Ramon Jordan, March 1998 & Revised March 2001
U.S. National Arboretum, Agricultural Research Service, U.S. Department of Agriculture, Washington, DC 20002

Note: This publication is not copyrighted, and permission to reproduce all or any part of it is not required.

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Last Updated October 6, 2003 4:26 PM
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